diff options
Diffstat (limited to 'U/i_net_errno.U')
| -rw-r--r-- | U/i_net_errno.U | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/U/i_net_errno.U b/U/i_net_errno.U new file mode 100644 index 0000000000..c5fb9116a0 --- /dev/null +++ b/U/i_net_errno.U @@ -0,0 +1,50 @@ +?RCS: $Id: i_net_errno.U,v $ +?RCS: +?RCS: You may redistribute only under the terms of the Artistic Licence, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic Licence; a copy of which may be found at the root +?RCS: of the source tree for dist 3.0. +?RCS: +?RCS: $Log: i_net_errno.U,v $ +?RCS: +?MAKE:i_neterrno: Inhdr cc ccflags rm +?MAKE: -pick add $@ %< +?S:i_neterrno: +?S: This variable conditionally defines the I_NET_ERRNO symbol, which +?S: indicates to the C program that <net/errno.h> exists and should +?S: be included. +?S:. +?C:I_NET_ERRNO: +?C: This symbol, if defined, indicates that <net/errno.h> exists and +?C: should be included. +?C:. +?H:#$i_neterrno I_NET_ERRNO /**/ +?H:. +?LINT:set i_neterrno +: see if net/errno.h is available +set net/errno.h i_neterrno +eval $inhdr +: Unfortunately, it causes problems on some systems. Arrgh. +case '$i_neterrno' in +'define') echo "<net/errno.h> found." + cat > try.c <<'EOM' +#include <stdio.h> +#include <errno.h> +#include <net/errno.h> +int func() +{ +int x; +x = ENOTSOCK; +return x; +} +EOM + if $cc $ccflags -c try.c >/dev/null 2>&1; then + i_neterrno="$define" + else + echo "But it causes problems, so we won't include it" + i_neterrno="$undef" + fi + $rm -f try.* try + ;; +esac |